Where does “第二次性徴” come from?

第二次性徴 (Japanese) comes from Japanese 性徴, from Japanese 性, from Middle Chinese 性.

第二次性徴 (Japanese): a secondary sex characteristic

Definitions

  1. a secondary sex characteristic

Ancestry of “第二次性徴”, step by step

第二次性徴 traces back through two separate lines of ancestry.

via Japanese 性徴

StepLanguageWordMeaning
1Japanese性徴a sex characteristic
2Japanese性the nature of something; sex, gender; gender
3Middle Chinese性—

via Japanese 第二次

StepLanguageWordMeaning
1Japanese第二次—
Every word from Middle Chinese 性 →Every word from Japanese 性 →Every word from Japanese 性徴 →